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-rw-r--r--apps/web/src/lib/ffmpeg-utils.ts64
1 files changed, 49 insertions, 15 deletions
diff --git a/apps/web/src/lib/ffmpeg-utils.ts b/apps/web/src/lib/ffmpeg-utils.ts
index 56085a21..ae0c267b 100644
--- a/apps/web/src/lib/ffmpeg-utils.ts
+++ b/apps/web/src/lib/ffmpeg-utils.ts
@@ -102,26 +102,60 @@ export const getVideoInfo = async (videoFile: File): Promise<{
fps: number;
}> => {
const ffmpeg = await initFFmpeg();
-
+
const inputName = 'input.mp4';
-
+
// Write input file
await ffmpeg.writeFile(inputName, new Uint8Array(await videoFile.arrayBuffer()));
-
- // Get video info
- await ffmpeg.exec(['-i', inputName, '-f', 'null', '-']);
-
- // Note: In a real implementation, you'd parse the FFmpeg output
- // For now, we'll return default values and enhance this later
-
+
+ // Capture FFmpeg stderr output with a one-time listener pattern
+ let ffmpegOutput = '';
+ let listening = true;
+ const listener = (data: string) => {
+ if (listening) ffmpegOutput += data;
+ };
+ ffmpeg.on('log', ({ message }) => listener(message));
+
+ // Run ffmpeg to get info (stderr will contain the info)
+ try {
+ await ffmpeg.exec(['-i', inputName, '-f', 'null', '-']);
+ } catch (error) {
+ listening = false;
+ await ffmpeg.deleteFile(inputName);
+ console.error('FFmpeg execution failed:', error);
+ throw new Error('Failed to extract video info. The file may be corrupted or in an unsupported format.');
+ }
+
+ // Disable listener after exec completes
+ listening = false;
+
// Cleanup
await ffmpeg.deleteFile(inputName);
-
+
+ // Parse output for duration, resolution, and fps
+ // Example: Duration: 00:00:10.00, start: 0.000000, bitrate: 1234 kb/s
+ // Example: Stream #0:0: Video: h264 (High), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 30 fps, 30 tbr, 90k tbn, 60 tbc
+
+ const durationMatch = ffmpegOutput.match(/Duration: (\d+):(\d+):([\d.]+)/);
+ let duration = 0;
+ if (durationMatch) {
+ const [, h, m, s] = durationMatch;
+ duration = parseInt(h) * 3600 + parseInt(m) * 60 + parseFloat(s);
+ }
+
+ const videoStreamMatch = ffmpegOutput.match(/Video:.* (\d+)x(\d+)[^,]*, ([\d.]+) fps/);
+ let width = 0, height = 0, fps = 0;
+ if (videoStreamMatch) {
+ width = parseInt(videoStreamMatch[1]);
+ height = parseInt(videoStreamMatch[2]);
+ fps = parseFloat(videoStreamMatch[3]);
+ }
+
return {
- duration: 10, // Placeholder - would parse from FFmpeg output
- width: 1920, // Placeholder
- height: 1080, // Placeholder
- fps: 30 // Placeholder
+ duration,
+ width,
+ height,
+ fps
};
};
@@ -194,4 +228,4 @@ export const extractAudio = async (
await ffmpeg.deleteFile(outputName);
return blob;
-}; \ No newline at end of file
+}; \ No newline at end of file